> I get core dumps and bad behaviour from programs linked against the
> shared libc. All these programs have been compiled before the following
> change to src/lib/libc/gen/errlist.c (1.8 1998/02/08 19:07:13 kleink) came up:
>
> 143a145,150
> > "Authentication error", /* 80 - EAUTH */
> > "Need authenticator", /* 81 - ENEEDAUTH */
> >
> > /* SystemV IPC */
> > "Identifier removed", /* 82 - EIDRM */
> > "No message of desired type", /* 83 - ENOMSG */
>
> Is it possible for this change to break old programs?
Yes. Programs that reference `sys_errlist[]' directly, import both
the name and the size (since it's a data item) from the library at
link time.
Hence, any change to the size of the array constitutes an incompatible
interface change that should result in a new major version number.
Since we're not ready yet to bump the major on libc, these additions
must be implemented using the `internal versioning' scheme.
-pk